I subscribed to Paramount Plus before I purchased the Apple TV - how can I link my current Paramount Plus app with my new Apple TV

Do you have the Apple TV box connected to a TV, or do you have a third party streaming device with the Apple TV app?

• If the first, then simply download the Paramount+ app on your Apple TV (4th generation or later). The Apple TV app on the Apple TV box will then get the Paramount+ content in Watch Now, Up Next and Search. That is different from the Paramount+ Channel in the Apple TV app, for which your ‘outside’ subscription isn’t valid. These two types are not exchangeable (mostly).
• If the latter, then the services can’t be linked, as such support would need to be provided through the device OS.